Now when we say book club, obviously we are not talking about Fifty Shades of Grey or Eat, Pray, Love.

Over the course of three years, while living in Bern, Switzerland, the young genius managed to make enough money at his meager job to buy a book or two. He would discuss them with a small group of friends who jokingly called themselves The Olympia Academy.

So what did Einstein and his super-smart friends read? Thanks to website From The Grapevine we now know! For a full look at each book and the connection to Einstein's theories go to FTG. Here's a brief glimpse at a few below.

Aside from the Freudian aspects of Mach's writings about the Ego, it was probably his fascination with the mysterious effect of our senses and how they impact our observations that had an impact on Einstein.

Mach researched the effect the physical world has on our senses and how that changes perception.